diff --git a/CHANGELOG.md b/CHANGELOG.md
index 81f72af..3e90f32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 Changelog
 =========
 
+# 0.11.1
+* Added ``typing_extensions`` to dependencies
+
 # 0.11.0
 * Added ``pyproximal.optimization.primal.DouglasRachfordSplitting``
   solver
diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index 289a170..a0e5561 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -3,6 +3,12 @@
 Changelog
 =========
 
+Version 0.11.1
+--------------
+*Released on: 25/11/2025*
+
+* Added ``typing_extensions`` to dependencies
+
 Version 0.11.0
 --------------
 *Released on: 24/11/2025*
diff --git a/environment-dev-arm.yml b/environment-dev-arm.yml
index 12e63ce..d86f2b0 100644
--- a/environment-dev-arm.yml
+++ b/environment-dev-arm.yml
@@ -10,6 +10,7 @@ dependencies:
   - pylops>=2.0.0
   - scikit-image
   - matplotlib
+  - typing_extensions
   - ipython
   - pytest
   - Sphinx
diff --git a/environment-dev.yml b/environment-dev.yml
index bc41aa1..9718bec 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -10,6 +10,7 @@ dependencies:
   - pylops>=2.0.0
   - scikit-image
   - matplotlib
+  - typing_extensions
   - ipython
   - pytest
   - Sphinx
diff --git a/environment.yml b/environment.yml
index ee130c0..22569fa 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,3 +6,4 @@ dependencies:
   - numpy>=1.21.0
   - scipy>=1.14.0
   - pylops>=2.0.0
+  - typing_extensions
diff --git a/pyproject.toml b/pyproject.toml
index a25122b..e242ead 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,6 +33,7 @@ dependencies = [
     "numpy >= 1.21.0",
     "scipy >= 1.11.0",
     "pylops >= 2.0.0",
+    "typing_extensions",
 ]
 dynamic = ["version"]
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 063b69e..b0d5703 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,6 +7,7 @@ matplotlib
 ipython
 bm4d<4.2.4 # temporary as gclib problem arises in readthedocs
 bm3d<4.0.2 # temporary as gclib problem arises in readthedocs
+typing_extensions
 pytest
 pytest-runner
 setuptools_scm
diff --git a/requirements-doc.txt b/requirements-doc.txt
index 063b69e..b0d5703 100644
--- a/requirements-doc.txt
+++ b/requirements-doc.txt
@@ -7,6 +7,7 @@ matplotlib
 ipython
 bm4d<4.2.4 # temporary as gclib problem arises in readthedocs
 bm3d<4.0.2 # temporary as gclib problem arises in readthedocs
+typing_extensions
 pytest
 pytest-runner
 setuptools_scm